The Suzuki DF15AS5 is a 15 HP short shaft EFI outboard, designed for boaters who want a lightweight yet powerful tiller-driven engine. Weighing only 97 lbs, this model is among the lightest in its class, making it easy to transport and install on smaller boats or dinghies with a 15" transom.
Featuring Suzuki’s advanced battery-less EFI system, the DF15AS5 delivers smooth acceleration, reliable starting, and excellent fuel efficiency without requiring a battery. The manual start and manual tilt design keeps it simple and low-maintenance.

Suzuki DF15AS5 Specifications
| MODEL | DF15 AS5 |
| WEIGHT | 97.0 lb |
| MANUFACTURER | Suzuki |
| COUNTRY OF MANUFACTURE | Thailand |
| HORSEPOWER | 15 HP |
| SHAFT LENGTH | 15" (Short) |
| STEERING | Tiller |
| STARTING | Manual |
| TRIM & TILT | Manual |
| FUEL DELIVERY | EFI |
| FUEL TANK | 3.1 Gallon External Tank & Fuel Line (Included) |
| CYLINDER(S) | 2 |
| DISPLACEMENT | 327 cc (20.0 cu in) |
| BORE & STROKE | 60.4 x 57 mm (2.38 x 2.24 in) |
| RPM RANGE | 5000 – 6000 RPM |
| IGNITION SYSTEM | Digital CDI |
| INDUCTION SCAVENGING | SOHC |
| VALVES PER CYLINDER | 2 |
| FUEL TYPE | Unleaded Gasoline (87 octane) |
| OIL TYPE | SAE 10W-30 or SAE 10W-40 |
| OIL CAPACITY | 33.8 fl oz (1000 mL) |
| LUBRICATION | Wet Sump; Trochoid Type Cam-Driven Oil Pump |
| ALTERNATOR | 12V 80W 6A (Optional) |
| COOLING SYSTEM | Water-Cooled |
| SALTWATER RATED | Yes |
| GEAR RATIO | 2.08:1 |
| GEAR SHIFT | Forward-Neutral-Reverse (front-mounted lever) |
| PROPELLER | 3-Blade Aluminum 9.25" Dia. x 9.0" Pitch |
| INTERNAL BATTERY | No |
Engine Specifications
| Horsepower | 15 HP |
|---|---|
| Cylinders | 2 |
| Shaft Length | 15" |
| Weight | 97.0 lb |
| Steering | Tiller |
| Throttle & Shift Control | Mechanical |
| Trim & Tilt | Manual |
| Starting | Electric |
| Fuel Delivery | Electronic Fuel Injection |